Set in a postapocalyptic future, this hit anime series follows the battle for world domination between the Vatican, which has become a mighty military and political entity (and humanity's protector) and rapacious vampires known as the Methuselah. Fighting for the Vatican -- with humankind's survival at stake -- is Abel Nightroad, who's part of the Special Ops force AX ... and secretly a vampire who feeds on his own kind.